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Customer Questions and Answers for Refrigerator Water Line Union Coupling by Whirlpool

4.89 (64)
By: Whirlpool
Part Number: OEM18027879
Manufacturer Part Number: WP4373559

Connects water tubes of different sizes at the base of your refrigerator door. Replace if leaking, cracked, or calcified to restore a watertight seal.

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Questions & Answers

For Whirlpool Refrigerator Water Line Union Coupling (Part Number: OEM18027879)

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Answer

Hello Kala. For this coupler WP4373559, you will press the 5/16" line into the large hole until it locks into place and then press the 1/4" line into the small opening until it locks into place. These are compression fittings. Hope this helps.

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Answered by AppliancePartsPros.com   |   Wednesday, March 14, 2012

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